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Philips Semiconductors
User Manual of High-End RDS/EON
Car Radio System CCR612 (V0.3)
Application Note
96029
Key Description
DISPLAY By default (in radio mode), the display will show the programme service name
of the current station, or - when not available - the band and frequency.
The display key serves to show available information:
- Programme TYpe name
- Band and frequency
- Programme Service name
Each time this key is pressed, the display changes to the next item in the list. If
an item is not available, it is skipped.
When the display key is not pressed within 6 seconds, or when any other key
is pressed, the display returns to the default state.
DISPLAY CD-changer mode.
In CD-changer mode the key DISPLAY is used to show the time played from
the current track. The display mode will be cancelled automatically after ten
seconds.
VOL-UP,
VOL-DOWN
These keys are installed only if a digital sound control chip is installed.
The VOL-UP and VOL-DOWN keys increment/decrement the setting of the
current analogue function. The setting is changed with 4/8 steps per second,
as long as the key is held down, or until the end of the range has been
reached. For volume, balance and fader, each step is variable dB (8 steps per
second), for bass each step is 1.5 dB (TEA6320/6322) or 1.8 dB
(TEA6321/6323) and for treble each step is 1.5 dB (4 steps per second).
By default, volume is changed. No indication on the display is given in that
case.
With the select key, the function on which the VOL-UP and VOL-DOWN keys
operate can be changed to: bass, treble, balance or fader. (See select key
description). In these modes, the setting is shown on the display.
SELECT When pressed short:
It changes the function on which the VOL-UP, VOL-DOWN keys operate to:
bass, treble, balance or fader. Each time the key is pressed, the next
function is selected.
The fader function is only available if the 2/4 loudspeakers option in the user
programmable options was set to "4 SPKRS".
By default, the VOL-UP and VOL-DOWN keys operate on volume. When
none of the keys select, VOL-UP or VOL-DOWN is pressed within 6
seconds, or when any other key is pressed, the default function volume is
restored. This key function is disabled if no digital sound control chip is
installed.
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